Completely agree here and w/ onthecouchagain. Been waiting 2.5 years for Apple to release a LTE ready phone, and if iP5 didn't have it, I'd consider sitting out this refresh or even take a serious second look at the Nexus line. It is exactly as onthecouchagain said, there was no other option for iOS!
Back to the Nexus, the gap between the pure Google experience and the alternative is just not that big any more, just like the gap between two usable mobile OS in iOS and Android. We aren't talking about the gap between JB and Gingerbread, we're actually comparing 4.2 to 4.1. Sure Nexus 4 may get the next iteration of Android OS faster than its competition, but 4.1 is already a beefy, capable, and smooth working OS.
Just wanted to point out one thing that I haven't seen mentioned yet, it might be minimal, but it's kind of interesting that Google went with a 16:10 aspect ratio, altho I guess it makes sense since the Optimus G is 16:10. The GNex is 16:9. I hope both phones are supported moving forward, I don't know what if anything goes in to maintaining both aspect ratios for developers. In terms of video, it is interesting to note that at a 4.7" screen w/ 16:10 ratio, you get the same viewable area/resolution as the 16:9 4.65" GNex.